Merger Review Extended: The Federal Communications Commission has extended its review of AT&T Inc.'s proposed $39 billion acquisition of rival T-Mobile USA. The Wall Street Journal reports the FCC said AT&T's reliance on new economic models to support the merger has caused the delay.

Grounded: The Federal Aviation Administration may partially shut down Friday amid a funding dispute, The Washington Post reports. Air traffic controllers would remain on the job.

Back To Earth: Space Shuttle Atlantis rolled to a stop this morning shortly before 6 a.m., marking the conclusion of the final NASA shuttle flight after more than three decades of space exploration. “Mission complete, Houston,” Capt. Christopher J. Ferguson of the Navy, commander of the Atlantis, said.